OSDev.org

The Place to Start for Operating System Developers
It is currently Tue Nov 19, 2019 4:41 am

All times are UTC - 6 hours




Post new topic Reply to topic  [ 729 posts ]  Go to page Previous  1 ... 43, 44, 45, 46, 47, 48, 49  Next
Author Message
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Jul 03, 2017 2:58 pm 
Offline
User avatar

Joined: Fri Oct 14, 2016 7:37 pm
Posts: 24
Location: Canada
I replaced my kmalloc() workings with something spicier and this happened...
You can actually see the pink BSOD (more like PSOD hahaha) and I have no idea what went wrong. I suspect some corruption in the double buffering mechanism for VESA.
:(

Image

_________________
LiquiDOS, my weird hobbyist OS.
"Strive for progress, not perfection" - Anonymous


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Thu Jul 06, 2017 3:24 am 
Offline
Member
Member

Joined: Sat Mar 21, 2009 9:42 pm
Posts: 50
An OS for AVR microcontrollers I'm working on. Testing out some new USART code


Attachments:
avr-os-fail.png
avr-os-fail.png [ 42.39 KiB | Viewed 8377 times ]
Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Thu Jul 20, 2017 7:34 am 
Offline
Member
Member
User avatar

Joined: Fri Aug 07, 2015 6:13 am
Posts: 1055
Kernel decided to dump itself.


Attachments:
BugDump.png
BugDump.png [ 30.4 KiB | Viewed 8062 times ]

_________________
OS: Basic OS
About: 32 Bit Monolithic Kernel Written in C++ and Assembly, Custom FAT 32 Bootloader
Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Fri Sep 01, 2017 7:23 pm 
Offline
User avatar

Joined: Fri Sep 01, 2017 6:53 pm
Posts: 16
Location: Londrina - Paraná | Brazil
Gramado: Crazy window list


Attachments:
File comment: Gramado: Crazy window list
window-list.png
window-list.png [ 12.64 KiB | Viewed 7410 times ]
Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Wed Sep 13, 2017 8:51 pm 
Offline
User avatar

Joined: Thu Apr 24, 2014 1:35 pm
Posts: 13
I feel like I did good today.
Image

_________________
SAUCE CD IV - The most schwaaay OS.


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Sep 25, 2017 6:41 am 
Offline
Member
Member
User avatar

Joined: Sat Dec 17, 2016 6:58 am
Posts: 101
Location: The Internet
FelixBoop wrote:
I feel like I did good today.

Looks like some kind of ASCII game or something.

_________________
Everyone should know how to program a computer, because it teaches you how to think! -Steve Jobs
Code:
while ( ! ( succeed = try() ) );


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Sep 25, 2017 6:32 pm 
Offline

Joined: Mon Sep 25, 2017 6:29 pm
Posts: 1
I see a lot of strange vga text things. I used to get that because of an overflow in my command buffer.


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Tue Sep 26, 2017 4:58 am 
Offline
Member
Member
User avatar

Joined: Sat Dec 17, 2016 6:58 am
Posts: 101
Location: The Internet
BrandonKoerner wrote:
I see a lot of strange vga text things. I used to get that because of an overflow in my command buffer.

At least they look nice :D

_________________
Everyone should know how to program a computer, because it teaches you how to think! -Steve Jobs
Code:
while ( ! ( succeed = try() ) );


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Fri Nov 10, 2017 10:00 pm 
Offline
Member
Member

Joined: Thu May 25, 2017 10:41 pm
Posts: 28
Not so much a screw-up as utilization of some common failures in this thread;
I made a program to show memory "graphically" by copying it to the command buffer.
You can move it forward 1 byte with A or 1024 bytes (1 kb.) with B, and show a little help info + the current location with C.
Here is a demo pic:

Image


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sun Nov 12, 2017 6:54 am 
Offline
Member
Member
User avatar

Joined: Sat Dec 17, 2016 6:58 am
Posts: 101
Location: The Internet
thumble wrote:
Not so much a screw-up as utilization of some common failures in this thread;
I made a program to show memory "graphically" by copying it to the command buffer.
You can move it forward 1 byte with A or 1024 bytes (1 kb.) with B, and show a little help info + the current location with C.
Here is a demo pic:



NEVER try this on real hardware!!!! This could potentially have problems (corrupting memory) if you are not careful (accidentally writing video memory to the hard drive)

_________________
Everyone should know how to program a computer, because it teaches you how to think! -Steve Jobs
Code:
while ( ! ( succeed = try() ) );


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Nov 20, 2017 8:42 pm 
Offline
Member
Member

Joined: Thu May 25, 2017 10:41 pm
Posts: 28
Phewph! I did test it on real hardware, however it was an Acer laptop which refused to boot Windows anyways.
Thank you for the warning.


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Dec 11, 2017 2:20 pm 
Offline
User avatar

Joined: Sun Dec 10, 2017 11:15 am
Posts: 6
Some rather interesting results originating from (I assume) a faultly paging implementation, or a bug in my memcpy function :

Image

Image

_________________
My C++ OS Project : https://github.com/Stellaris-code/LudOS
FAT read support, Tar, VESA, AHCI, PIO IDE, along with a basic shell !


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Mon Dec 11, 2017 7:20 pm 
Offline
Member
Member

Joined: Mon Oct 11, 2010 11:37 pm
Posts: 52
Location: Milwaukee, Wisconsin
Stellaris wrote:
Some rather interesting results originating from (I assume) a faulty paging implementation, or a bug in my memcpy function :


Very interesting, gallery-worthy images! Good luck, I hope you find the source of the bug.

_________________
Microsoft is over if you want it.


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Wed Dec 13, 2017 12:11 pm 
Offline
User avatar

Joined: Sun Dec 10, 2017 11:15 am
Posts: 6
Fixed the bug, it was my physical page allocator that was freeing the wrong pages, thus allowing allocated memory to be corrupted
It's sooo satisfying to find the source of a bug tho ^^

_________________
My C++ OS Project : https://github.com/Stellaris-code/LudOS
FAT read support, Tar, VESA, AHCI, PIO IDE, along with a basic shell !


Top
 Profile  
 
 Post subject: Re: When your OS goes crazy - Screenshots
PostPosted: Sat Dec 23, 2017 7:26 am 
Offline
Member
Member
User avatar

Joined: Sat Dec 17, 2016 6:58 am
Posts: 101
Location: The Internet
I don't know where else to put this, but the title of the section is fitting.

I can get my OS to compile properly, but I can't boot it in virtualbox and qemu just decided that it doesn't want to work on my system. And I hate bochs.

I don't have screenshots, but I can tell you right now that i tested this.

Ok, so it's not entirely my system, i was going to modify it to my needs. https://github.com/SamyPesse/How-to-Mak ... ing-System

It compiles fine but I can't boot the images.

p.s. move this somewhere if necessary, i don't know where it should go.

EDIT: i might want to use the right system to compile it... time to download vagrant. Sorry for hijacking the thread :oops:

_________________
Everyone should know how to program a computer, because it teaches you how to think! -Steve Jobs
Code:
while ( ! ( succeed = try() ) );


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 729 posts ]  Go to page Previous  1 ... 43, 44, 45, 46, 47, 48, 49  Next

All times are UTC - 6 hours


Who is online

Users browsing this forum: Google [Bot] and 12 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group